view twisted/plugins/ @ 443:eca26481176f

use of new config module for logs
author Goffi <>
date Wed, 14 May 2014 12:52:27 +0200
parents 582c435dab6b
children c406e46fe9c0
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# -*- coding: utf-8 -*-

# Libervia: a Salut à Toi frontend
# Copyright (C) 2013  Emmanuel Gil Peyrot <>

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# GNU Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <>.

from twisted.internet import defer
if defer.Deferred.debug:
    # if we are in debug mode, we want to use ipdb instead of pdb
        import ipdb
        import pdb
        pdb.set_trace = ipdb.set_trace
        pdb.post_mortem = ipdb.post_mortem
    except ImportError:

# XXX: We need to configure logs before any log method is used, so here is the best place.
from constants import Const as C
from sat.core import log_config
log_config.satConfigure(C.LOG_BACKEND_TWISTED, C)

from zope.interface import implements

from twisted.python import usage
from twisted.plugin import IPlugin
from twisted.application.service import IServiceMaker

from ConfigParser import SafeConfigParser, NoSectionError, NoOptionError
from sat.core.constants import Const as C
    from libervia_server import Libervia
    opt_params = Libervia.OPT_PARAMETERS
except (ImportError, SystemExit):
    # avoid raising an error when you call twisted and sat is not launched
    opt_params = []

class Options(usage.Options):

    # optArgs is not really useful in our case, we need more than a flag
    optParameters = opt_params

    def __init__(self):
        """You want to read SàT configuration file now in order to overwrite the hard-coded default values.
        This is because the priority is (form lowest to highest):
        - use hard-coded default values
        - use the values from SàT configuration files
        - use the values passes on the command line
        If you do it later: after the command line options have been parsed, there's no good way to know
        if the  options values are the hard-coded ones or if they have been passed on the command line.
        config = SafeConfigParser()
        for index, param in list(enumerate(self.optParameters)):
            # index is only used to not modify the loop variable "param"
            name = param[0]
                value = config.get('libervia', name)
                self.optParameters[index][2] = param[4](value)
            except (NoSectionError, NoOptionError):

class LiberviaMaker(object):
    implements(IServiceMaker, IPlugin)
    tapname = 'libervia'
    description = u'The web frontend of Salut à Toi'
    options = Options

    def makeService(self, options):
        return Libervia(**dict(options))  # get rid of the usage.Option overload

# affectation to some variable is necessary for twisted introspection to work
serviceMaker = LiberviaMaker()